Improvement in iron frames of pianos



2 Sheets-Sheet 1. H. WORCESTER. IRON FRAME FOR PIANOS.

No. 35,484. Patented June 3, 1862.

2 Sh eets- Sheet 2.

H. WORCESTER. IRON FRAME FOR PIANOS.

No. 35,484. Patented June 3, 1862.

uns :0, wow-urns" vmsmmiTON UNITED STATES HORATIO WORCESTER,

PATENT OFFICE,

OF NE\V YORK, N. Y.

IMPROVEMENT IN IRON FRAMES OF PiANOS.

Specification forming part of Letters Patent No. 35,4 8 1, dated June 3, 1862.

To aZZ whom it may concern:

Be it known that I, HORATIO WoRoEsTER, of New York, have invented a new and 1111- proved Plate for Piano-Fortes; and I do here by declare that the following is a full and ex act description thereof, reference being had to the accompanying drawing, and to the letters of reference marked therein.

My invention consists in making the plate in two pieces, D and F, the stationary part being fastened to the instrument in the usual manner, the part to which the strings are hitched D being constructed separately, with a link or opening in the base end, by which it is suspended to the abutment O on the stationary part F of the plate at the rigl1t-hand front corner, as shown in the drawing, thus forming a hinge or coupling, E, upon which the detached portion of the plate D moves freely in connection with the springs while they are in motion, thereby communicating increased vibratory power throughout the whole extent of the sonndingboard under the plate.

I do not claim the brace A itself. that having been used before, east solidly with the plate; but

I do claim as new and desire to secure by Letters Patent- The plate made in two pieces, I) and F, connected by a hinge or coupling, E, the effect of both being to give a more full and eomplefe vibration to the sounding board.

H, XVORGESTER.

\Vit n esses:

WM. H. BIRD, J. MOFARLAND, 

